Asteraceae
Graham's thistle
Cirsium grahamii
- Family
- Asteraceae
- Genus
- Cirsium
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Common names
By language (1)
- English
- Graham's thistle
Synonyms
- Carduus grahamii Greene
- Cirsium undulatum var. grahamii (A.Gray) Petr.
- Cnicus grahamii A.Gray
Characteristics
- Growth habit
- Forb/herb
- Lifespan
- Perennial
- In the US and Canada
- Lower 48 states: native
Photos
FlowerPhoto: Anders Hastings, CC BY 4.0, from iNaturalist 
Photo: Wikimedia Commons contributor, CC BY 4.0, from Wikimedia Commons 
Photo: Michael A. Thaibinh, CC BY 4.0, from iNaturalist 
Photo: Michael A. Thaibinh, CC BY 4.0, from iNaturalist 
Photo: Michael A. Thaibinh, CC BY 4.0, from iNaturalist 
Photo: Sue Carnahan, CC BY 4.0, from iNaturalist
More in Cirsium
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- Dwarf thistleCirsium acauleAsteraceae
- Woolly thistleCirsium eriophorumAsteraceae
- Melancholy thistleCirsium heterophyllumAsteraceae
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- Meadow thistleCirsium dissectumAsteraceae
- Yellow melancholy thistleCirsium erisithalesAsteraceae
- Cirsium spinosissimumAsteraceae
- Cirsium tuberosumAsteraceae
Sources: classification, synonyms from World Flora Online Plant List (2026-06, CC0 1.0); common names, popularity from Wikidata (2026-10-26, CC0 1.0); common names, US characteristics from USDA PLANTS Database (2025-05-29, CC0 1.0). About our plant data.